1. Introduction:
6-Hi Reversing Cold Rolling Mill
Due to different numbers of rollers, the metal coil cold rolling
mill is divided into 2 Hi, 4 Hi, 6 Hi, and 12 Hi AGC.
The six-high cold rolling mill is more suitable for carbon steel,
stainless steel and special steel coil rolling; even the steel with
large width and small finished thickness is available too.
2. Characteristics:
- The good flatness of steel strip is controlled by hydraulic roller
bending device and middle roller transfer device control.
- Due to the smaller flat work rollers, the roller material can be
saved, so that the roller consumption can be also reduced.
- The thickness can be reduced by each pass.
3. Work flow:
Decoiler with coil loading car → Coil end straightener → Left
recoiler with coil discharging car → Work platform before rolling
mill → 6-hi cold rolling mill → Work platform after rolling mill →
Right recoiler with coil discharging car
Because of the different input thickness, input width and finished
thickness, six-high cold rolling mill can be divided into 2 types.
4. Technical Parameters:
- Thickness tolerance: ±0.02mm
- Running speed: 4m/s
- Total installation power: about 2200KW
- Occupation: about 15mX60m
5. Characteristics:
- This kind of cold rolling mill is controlled by PLC.
- It has HIM touch screen on main control console which is equipped
with malfunction alarm setting.
- This equipment adopts all digital DC power.
- The work rollers have the plus-minus roller-bending control.
- These middle rollers, middle rollers and backup rollers change
fast.
- The reversible rolling on this cold rolling mill has the feature of
high precison.
6. Detailed Technical Parameters
| Type | MAΦ150/Φ175/Φ460×450 | MAΦ150/Φ175/Φ500×500 | MAΦ165/Φ200/Φ630×650 | MAΦ165/Φ250/Φ680×800 |
| Input thickness(mm) | 1.0-2.5 | | 1.0-2.5 | | 1.0-3.5 | | 1.0-3.5 | |
| Finished thickness(mm) | 0.15-1.2 | | 0.15-1.5 | | 0.18-2.0 | | 0.2-2.0 | |
| Coil (mm) | 250-350 | | 300-400 | | 400-500 | | 550-700 | |
| Drive | Work roller | Work roller | Work roller | Work roller |
| Rolling force(KN) | 2800 | | 3500 | | 5000 | | 5500 | |
| Press-down | motor | hydraulic | motor | hydraulic | motor | hydraulic | motor | hydraulic |
| Rolling speed(m/s) | 3.5 | 4-6.5 | 3.5 | 4-8 | 3.5 | 4-5 | 3.5 | 4-5 |
| Rolling material | Normal carbon steel | Normal carbon steel | Stainless steel or carbon steel | Stainless steel |
| Items | Φ170/Φ300/Φ800×900 | Φ300/Φ370/Φ950×1050 | Φ330/Φ370/Φ1050×1250 | Φ400/Φ450/Φ1250×1450 |
| Input thickness(mm) | 2.0-4.0 | 2.0-4.0 | 2.0-4.0 | 2.0-4.0 |
| Finished thickness(mm) | 0.2-2.0 | 0.2-2.0 | 0.2-2.0 | 0.2-2.0 |
| Coil (mm) | 700-900 | 650-950 | 700-1100 | 900-1250 |
| Drive | Work roller | Work roller | Work roller | Work roller |
| Rolling force(KN) | 6500 | 10000 | 12000 | 15000 |
| Press-down | motor | hydraulic | hydraulic | hydraulic | hydraulic |
| Rolling speed(m/s) | 3.5 | 4-5 | 10 | 8-12 | 8-16 |
| Rolling material | carbon steel or stainless steel | Normal carbon steel | Normal carbon steel | Normal carbon steel |
7. Packaging
Machine will be fixed inside container by steel wire and special
PET strap, in order to make sure all parts will not move during
transportation and avoid any kinds of damage of machine and
container.
8. Warranty term: 12 months (excluding easy-broken parts)
9. Our service and features:
9.1 Design: We have a matured technical team with rich experience to develop
and deisng the machines according to customer's demand and
requirements.
9.2 This is a very perfect and durable equipment. We have more than
10 years experiences.
9.3 This kind of machine has the best quality and the best price.
It has accurate measurement and easy operating.
9.4 We provide technical support (both before, during and after
sales), production, installation, commissioning and maintenance
service to all customers.
9.5 Our product has been exported to many regions and won high
reputation because of the high quality and reasonable price.
